Two of them were math classes... but they were remedial classes so they don't count toward my college credit.

The third one was an English class (I know... horrible). It was the first time I failed English and I still regret not dropping that class.

Because of this, I am banned from applying to any colleges within my state (except technical colleges and a few others; depends on accreditation) for three years. This three year hiatus is one reason why I have considered teaching for a while. Sorta like a "gap year", I guess.